package com.welove.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.RelativeLayout;

/**
 * @author dreamfutureba@gmail.com
 * @date 2013-11-3下午10:14:16
 * @version 
 * @description 自定义GridView子项布局
 */
public class SquareLayout extends RelativeLayout{

	public SquareLayout(Context context) {
		super(context);
	}

	public SquareLayout(Context context, AttributeSet attrs) {
		super(context, attrs);
	}
	
	public SquareLayout(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
	}

	@SuppressWarnings("unused")
	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		// For simple implementation, or internal size is always 0.
        // We depend on the container to specify the layout size of
        // our view. We can't really know what it is since we will be
        // adding and removing different arbitrary views and do not
        // want the layout to change as this happens.
        setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec));
 
        // Children are just made to fill our space.
        int childWidthSize = getMeasuredWidth();
        int childHeightSize = getMeasuredHeight();
        //高度和宽度一样
        heightMeasureSpec = widthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY);
		super.onMeasure(widthMeasureSpec, heightMeasureSpec);
	}

}
